Tyre and Road Safety
Tyres are the single most important part of your vehicle, which ensure
your vehicle maintains at its required level of road safety. Especially on the Highway or
Expressway. Poor quality tyres or reduced tread dept tyres cause numerous road accidents losing road user's
life every year.
Tyres with a “P” are for passenger car use. Some passenger car tyres may not have
a “P” and are considered hard-metric tyres. Some light trucks and SUV’s are equipped with original equipment
P-metric or hard-metric tyres. Tyres with a “LT” are for light truck or SUV use only.
Reading the Tyre's Sidewall
P represents tyre type, which is passenger
185 represents the section width (tyre/tread width in mm)
60 is the tyre Aspect Ratio (the ratio of the sidewall height to the Tread Width)
R represents Radial tyre construction
15 represents the rim/wheel size (rim diameter in inch)
82H represents Load Index and speed symbol (speed rating)
Load index indicates the maximum load capacity each
tire is designed to support. Like speed ratings, assume near perfect operating conditions to obtain the
ratings listed in the table below.
|| Load in KG
Speed Symbol / Speed Rating
Speed ratings are determined by indoor laboratory testing methods which measure high speed tyre
durability under controlled test conditions.
However, these test procedures do not take into account underinflation, tyre damage, vehicle characteristics, or
road conditions which can lead to sudden tyre failure or loss of vehicle control at much lower speeds than
indicated by the tyre's speed rating.
The validity of using speed rated tyres is based on the idea that the tyre's top
speed capability must at least equal the vehicle's top speed capability, since it cannot be assumed that the driver
will always observe the speed limit.
Recently the speed rating is being referred to as the "Performance Rating" of the tyre, since the higher speed
rated tyres generally offer improved handling and maneuverability compared to lower speed rated
|| 180 km/h
|| 190 km/h
|| 200 km/h
|| 210 km/h
|| 240 km/h
|| 270 km/h
|| 300 km/h
|| above 300 km/h